Ponsones, Rigor B. <br/><br/>
Math Ideas and Lite Applications / 
Rigor B. Ponsones  
 - Quezon City, Philippines:  Abiva Publishing House,  c2017 
 - ix, 437 pages:  illustrations;  26 cm. 
<br/><br/><label>ISBN: </label>978-621-405-171-7 
<br/><br/><label>Dewey Class. No.: </label>Fil. 510 P798m 2017  / c1